Wow thank you, I didn't notice the not operator in the tests :)

Hi!
when I try my code (attempt button), some cases fail like this (output):
It should work also for a ['e', 'w', 'e', 'w', 'n', 's', 'n', 's', 'e', 'w'] walk: False should equal True

However, when I test my code (test button) with the failed ones, it passes. For example this works:
test.expect(not is_valid_walk( ['e', 'w', 'e', 'w', 'n', 's', 'n', 's', 'e', 'w'] ), 'should return True');

Is this a weird issue with my code or with the testing? Thanks!